/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.util;


import javax.xml.stream.Location;

import com.sun.org.apache.xerces.internal.xni.XMLLocator;

/**
 * <p>A light wrapper around a StAX location. This is useful
 * when bridging between StAX and XNI components.</p>
 *
 * @author Michael Glavassevich, IBM
 * @version $Id: StAXLocationWrapper.java,v 1.2 2010-10-26 23:01:13 joehw Exp $
 */
public final class StAXLocationWrapper implements XMLLocator {

  private Location fLocation = null;

  public StAXLocationWrapper() {
  }

  public void setLocation(Location location) {
    fLocation = location;
  }

  public Location getLocation() {
    return fLocation;
  }

    /*
     * XMLLocator methods
     */

  public String getPublicId() {
    if (fLocation != null) {
      return fLocation.getPublicId();
    }
    return null;
  }

  public String getLiteralSystemId() {
    if (fLocation != null) {
      return fLocation.getSystemId();
    }
    return null;
  }

  public String getBaseSystemId() {
    return null;
  }

  public String getExpandedSystemId() {
    return getLiteralSystemId();
  }

  public int getLineNumber() {
    if (fLocation != null) {
      return fLocation.getLineNumber();
    }
    return -1;
  }

  public int getColumnNumber() {
    if (fLocation != null) {
      return fLocation.getColumnNumber();
    }
    return -1;
  }

  public int getCharacterOffset() {
    if (fLocation != null) {
      return fLocation.getCharacterOffset();
    }
    return -1;
  }

  public String getEncoding() {
    return null;
  }

  public String getXMLVersion() {
    return null;
  }

} // StAXLocationWrapper
